/Engine/Source/Editor/UMGEditor/Public/WidgetBlueprintEditorUtils.h
static bool VerifyWidgetRename ( [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< class [FWidgetBlueprintEditor](API\Editor\UMGEditor\FWidgetBlueprintEditor) > BlueprintEditor, [FWidgetReference](API\Editor\UMGEditor\FWidgetReference) Widget, const [FText](API\Runtime\Core\Internationalization\FText) & NewName, [FText](API\Runtime\Core\Internationalization\FText) & OutErrorMessage )